Invalid access to memory

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.7

Error message:
Invalid access to memory.

Stack trace:
[009D6682] TPoolForDataEvent::PoolForData
[7725054E] ntdll.dll.ZwWow64CallFunction64
[77250CCA] ntdll.dll.KiUserExceptionDispatcher
[00670678] System::Classes::_18201
[76FC8E6F] USER32.DLL.CallNextHookEx
[76FC90CC] USER32.DLL
[76FCA66A] USER32.DLL
[76FCA6DB] USER32.DLL.DispatchMessageW

Thanks for your report.
I have sent you an email with a debug version of WinSCP to address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.7.6

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(006A898E) TPoolForDataEvent::PoolForData
(0008A63F) ntdll.dll
(00077E9A) ntdll.dll.KiUserExceptionDispatcher
(003402A8) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001553C) USER32.dll
(000152FB) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

I left a session connected (through a VPN channel) end hibernated the computer. The error showed up at resume.

WinSCP 5.17.7

Error message:
Accesso alla memoria non valido.

Stack trace:
(00D06F62) TPoolForDataEvent::PoolForData
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00031D85) USER32.dll
(00031B4B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I rebooted the router with the SCP application open, clicked on the message about the lost connection, then it went into an infinite loop of Invalid access to memory errors

WinSCP 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(00D349FE) TPoolForDataEvent::PoolForData
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

@Danny.Wilkin: Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(00D3CA6A) TPoolForDataEvent::PoolForData
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(003C7B64) System::Classes::_18201
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.21.5

Error message:
Invalid access to memory.

Stack trace:
(00D4F62E) TPoolForDataEvent::PoolForData
(0008225F) ntdll.dll
(0006FDBA) ntdll.dll.KiUserExceptionDispatcher
(003C9C0C) System::Classes::_18201
(0002C2D1) USER32.dll
(0000C305) USER32.dll
(0000BC4F) USER32.dll
(0000BA0B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.21.7

Error message:
Invalid access to memory.

Stack trace:
(00D4F7DE) TPoolForDataEvent::PoolForData
(00097F5F) ntdll.dll
(00076171) ntdll.dll.KiUserExceptionDispatcher
(003C9C40) System::Classes::_18201
(00046D70) USER32.dll
(00026125) USER32.dll
(00024A53) USER32.dll
(0002458B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 6.1.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00D6B062) TPoolForDataEvent::PoolForData
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(0021564C) System::Classes::_18201
(00040209) USER32.dll
(000371C5) USER32.dll
(00034F25) USER32.dll
(00034CEB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.